The arterial sling operation: one-year follow-up

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Interventional Cardiology

Background:

• Total arterial revascularization using bilateral in situ internal thoracic arteries is an advanced treatment for ischemic heart disease.
• The arterial sling operation creates an arterial arcade by connecting internal thoracic arteries with the radial artery for dual blood supply.
• This study reports 1-year angiographic and clinical outcomes of the arterial sling operation.

Purpose of the Study:

• To evaluate the 1-year angiographic and clinical results of the arterial sling operation.
• To assess the safety and efficacy of total arterial revascularization using this technique.

Main Methods:

• The arterial sling operation was performed on 28 patients between October 2000 and September 2001.
• All patients underwent a 1-year postoperative angiographic and clinical examination.
• Angiograms were systematically reviewed by an interventional cardiologist and a cardiac surgeon.

Main Results:

• Twenty-three patients completed the 1-year angiographic follow-up.
• The overall 1-year graft patency rate was 91.4%, with 8 out of 93 peripheral anastomoses occluded.
• Among the arterial slings, 3 were fully patent, 15 had single-segment stenosis/occlusion, and 5 had double-segment stenosis/occlusion.

Conclusions:

• The arterial sling operation is a safe procedure with a high 1-year patency rate.
• Degeneration of arterial sling segments due to competitive blood flow did not impact the vascular bed in patients without disease progression.
• Minimizing competitive flow during arterial revascularization is recommended.